* {
	padding:0;
	margin:0;
}
ul {
	list-style:none;
}
.out {
	width:350px;
	height:245px;
	margin:50px auto;
	position:relative;
}
.img li {
	position:absolute;
	top:0px;
	left:0px;
	display:none
}
.out .num {
	position:absolute;
	bottom:0px;
	left:0px;
	font-size:0px;
	text-align:center;
	width:100%;
}
.num li {
	width:20px;
	height:20px;
	background:#666666;
	color:#FFFFFF;
	text-align:center;
	line-height:20px;
	display:inline-block;
	font-size:16px;
	border-radius:50%;
	margin-right:10px;
	cursor:pointer;
}
.out .btn {
	position:absolute;
	top:50%;
	margin-top:-30px;
	width:30px;
	height:60px;
	background:rgba(0,0,0,0.5);
	color:#FFFFFF;
	text-align:center;
	line-height:60px;
	font-size:40px;
	display:none;
	cursor:pointer;
}
.out .num li.active-1 {
	background:#AA0000;
}
.out:hover .btn {
	display:block
}
.out .left {
	left:0px;
}
.out .right {
	right:0px;
}